Check out this video from this morning's "Today Show." It's a report on the Nikolaevsk village in Alaska, a town that to this day is filled with Russian "Old Believers." Think of the Amish, but Russian Orthodox, and in Alaska.
A friend from Moscow lives there and her kids appear in the clip a few times. I remember what culture shock she went through when she and her husband moved here! They had spoken Russian their whole lives, but it was Russian from another century... (He was here with one of the large oil companies; they had obviously been exposed to US culture beyond their village, so the shock wasn't simply going from a sheltered village to such an international city).